baber/WOPTO huggingface dataset:
Patent CA-1293355-C (CA)
Inventor: FREEMAN WILLIAM R JR
IPC: B22D29/00
Filed: 1987-01-13
Granted: 1991-12-24
Abstract: ABSTRACT OF THE DISCLOSURE      A method of forming a fine grained equiaxed ingot by melting metal and placing it in a mold having a restriction at the entrance disposed to solidify the metal in the entrance to the mold prior to complete solidification of the metal in the mold such that a shrinkage void is formed below the entrance to the mold.  The ingot is then hot isostatically pressed (HIPped) to fully densify the ingot and eliminate the shrinkage void.
Patent CA-1289783-C (CA)
Inventor: CRANKO ERNEST
IPC: F16B29/00
Filed: 1987-01-30
Granted: 1991-10-01
Abstract: ABSTRACT     An anchor element (1, 31) is provided with a body (8, S, 40a, 40b) of bonded particulate material, eg. a sleeve of silicate bonded sands.          The element (1, 31) is received in a borehole (B. B1, B2) with the sleeve adjacent the blind end.  When a compressive force is applied between the ends of the body, the particles move closer together to form an annulus of compacted particulate material bridging the element and the wall of the borehole (B, B1, B2).
Patent CA-1294213-C (CA)
Title: Method for controlling rock dissolution and pipe corrosion during oil well steam injection
Inventor: NIGRINI ANDREW
IPC: E21B43/22
Filed: 1987-04-02
Granted: 1992-01-14
Abstract: ABSTRACT OF THE DISCLOSURE            A method of inhibiting the dissolution of the gravel pack and silicate- or carbonate-containing forma-tions subjected to steam-enhanced oil recovery processes while inhibiting the corrosion of mild steel.  The method includes the controlled addition of a salt to the steam feed water to maintain the pH of the residual liquid phase in the range of from 8 to 10.  Preferred salts are ammo-nium salts, such as ammonium sulfate and ammonium chloride.
Patent CA-1290170-C (CA)
Title: Sampling device for collecting fume
Inventor: CLOUTIER YVES
IPC: G01N1/24
Filed: 1987-04-10
Granted: 1991-10-08
Abstract: ABSTRACT OF THE DISCLOSURE:          An improved sampling device for collecting at least part of air-borne particles in a workman's breathing zone.  The device comprises a cassette provided with an inlet, an outlet and an air filter, a vacuum pump and a flexible tubing of determined length connecting the vacuum pump to the outlet of the cassette.  In use, a portion of the air contained in the breathing zone of the workman  is drawn through the filter and the particles  collected thereon.  This device is improved in that a deformable metallic tubing is positioned inside a portion of the flexible tubing or is positioned between a short length of a tubing connected to the outlet of the cassette and this flexible tubing.  In addition, at least one fastener is provided for fixing the deformable metallic tubing and eventually the flexible tubing,  to at least one strap intended to be tightened around a workman's head.  This device is useful to position the air-intake of the cassette in the workman's breathing zone.
Patent CA-1282551-C (CA)
Title: Self contained internal combustion fastener driving tool
Inventor: COTTA GILBERT A
IPC: B25C1/08
Filed: 1987-06-29
Granted: 1991-04-09
Abstract: ABSTRACT OF THE DISCLOSURE A fastener driving tool powered by internal combustion of an air/fuel mixture.  A tool body has located therein upper and lower coaxial cylinders containing upper and lower pistons, respectively, attached to a common driver and forming a piston/driver assembly shiftable between a normal retracted position and an extended fastener driving position.  A combustion chamber at the upper end of the lower cylinder and having an ignition device therein.  The tool body contains a combustion air chamber and at least one return air chamber, together with a source of gaseous fuel.  A trigger actuated control valve is configured to introduce a measured air/fuel mixture from the combustion air chamber and the source of gaseous fuel into the combustion chamber, to actuate the ignition means to combust the air/fuel mixture and shift the piston/driver assembly to its extended position, to introduce air from the at least one return air chamber to the upper cylinder beneath the upper piston to return the piston/driver assembly to its normal position, to exhaust the combustion chamber and to replenish air in the combustion air chamber and the at least one return air chamber.
Patent CA-1285687-C (CA)
Title: Neutralization of catalyst in polymerization of polydiorganosiloxane
Inventor: STEBLETON LEO F
IPC: C08G77/08
Filed: 1987-07-30
Granted: 1991-07-02
Abstract: NEUTRALIZATION OF CATALYST IN POLYMERIZATION OF         POLYDIORGANOSILOXANE                        Abstract A high molecular weight polydiorganosiloxane, produced by the alkaline catalysis of dialkylcyclotetra-siloxane, has a lower -SiOH content when the catalyst is neutralized with a composition of the formula R'3SiOC(O)R" where R' is a hydrocarbon radical of from 1 to 6 carbon atoms inclusive and R" is a hydrocarbon radical of from 1 to 8 carbon atoms inclusive.
Patent CA-1329719-C (CA)
Inventor: TOYAMA TADAO
IPC: B41N3/08
Filed: 1987-07-31
Granted: 1994-05-24
Abstract: ABSTRACT OF THE DISCLOSURE A method of  treating a prensensitized printing plate is described wherein the method comprises subjecting a  presensitized  printing  plate  precursor  to  imagewise exposure to light, development and burning-in treatment, in which  an  aqueous  solution  containing  at least  one compound  selected  from  the  group  consisting  of polystyrenesulfonic acids and salts thereof is applied to the printing plate after the development but prior to the burning-in treatment.  A lithographic printing plate thus produced is also described.
Patent CA-1299410-C (CA)
Title: Interlayer directional coupling in antiresonant reflecting optical waveguides
Inventor: KOCH THOMAS L
IPC: H01S5/00
Filed: 1987-10-08
Granted: 1992-04-28
Abstract: Abstract A grating in the upper reflecting layer of an antiresonant reflecting optical waveguide is used to extract energy of a selected wavelength from the waveguiding layer into the reflecting layer.  In one embodiment the reflecting layer is designed as a gain medium which is pumped in the region of a grating and optically terminated at each end of the device such that the embodiment serves as a laser having a long cavity provided by the waveguiding layer with the gain provided in the short grating region.  In a second embodiment the reflecting layer in the region of a grating has an opposite conductivity dopant from that of the waveguiding layer such that the device in this region may be backbiased to serve as a wavelength selective photodetector.  By placing two wavelength photodetectors in tandem with gratings of different pitches a wavelength demultiplexing photodetector is provided.
Patent CA-1312663-C (CA)
Title: Electro-pneumatic braking system with deceleration control
Inventor: SINGLETON WILLIAM A
IPC: B60T8/78
Filed: 1987-12-11
Granted: 1993-01-12
Abstract: ABSTRACT OF THE DISCLOSURE An electro-pneumatic vehicle braking system controls braking by electronic signals transmitted from a master controller to the brakes of the vehicle controlled by axle controllers.  The master controller is responsive to the acutation of a treadle by the vehicle operator to calculate the difference between a requested vehicle deceleration and the actual vehicle deceleration, which is calculated based on data sensed by wheel sensors.  Service braking pressure is then set to maintain the requested vehicle deceleration.
Patent CA-1313597-C (CA)
Title: Porous surfaced implant
Inventor: PILLIAR ROBERT M
IPC: A61C8/00
Filed: 1987-12-16
Granted: 1993-02-16
Abstract: ABSTRACT           There is disclosed an implant for anchoring in bone and/or fibrous connective tissue and to which a prosthesis such as a dental bridge may be connected through connecting components.  The implant is of tapered design defining a wide top portion for connection to the connecting components and a narrow base.  The lower bone-engaging region of the implant is provided with a porous surface into which bone may grow thereby anchoring the implant and an upper portion of the implant has a smooth surface to avoid entrapment of oral bacteria.  In one embodiment, the upper portion has a larger taper angle than the rest of the implant for increased stability and stress transfer to the surrounding bone.  In another embodiment, the upper surface is coated with a bioreactive coating to allow direct bonding of bone and/or soft connective tissue (gingivial tissue) thereby inhibiting epithelial migration apically.
Patent CA-1327205-C (CA)
Title: Process for the manufacture of camomile oil having high poly-ynes content
Inventor: CARLE REINHOLD
IPC: C11B9/02
Filed: 1988-02-12
Granted: 1994-02-22
Abstract: ABSTRACT OF THE DISCLOSURE      Camomile oils having a natural poly-ynes content and process for their preparation.  Camomile oil having a high cis- and trans-spiroether content and a process for the preparation thereof.  Anti-inflammatory and anti-spasmolytic properties of the spiroethers are obtained with the camomile oils extracted according to the process of the present invention.  The process of the invention involves steam or aqueous distillation and avoids the decomposition of the spiroethers.
Patent CA-1301594-C (CA)
Title: Method and apparatus for removing aged wax and fur on vehicle
Inventor: TAKEUCHI SHIGEO
IPC: B60S3/06
Filed: 1988-02-26
Granted: 1992-05-26
Abstract: ABSTRACT        In a method for removing aged wax and fur from a vehicle by a washing machine including a gate-type frame which is movable astride the vehicle back and forth over the length of the latter and which is provided with a rotary brush arrangement, a dryer, a clear water sprayer, a neutralizer-containing rinse water sprayer and an aged-wax/fur removing material spreader, the vehicle is brushed by the rotary brush arrangement during a first advancing movement of the gate-type frame, and an aged-wax/fur removing material is spread onto the vehicle by the aged-wax/fur removing material spreader, while at the same time brushing the vehicle by said rotary brush arrangement during a first return movement and second advancing movement of the gate-type frame.          Next, the vehicle is brushed by the rotary brush arrangement during a second return movement of the gate-type frame, and then the gate-type frame is put out of operation for a given period of time to perform a readjustment of the brushing for such dwell period.  During a subsequent third advancing movement of the gate-type frame, a neutralizer-containing rinse water is sprayed onto the vehicle by the neutralizer-containing rinse water sprayer, while brushing the vehicle by the rotary brush arrange-ment, and clear water is then sprayed onto the vehicle by the clear water sprayer   Further, during a third return movement of the gate-type frame, clear water is sprayed onto the vehicle by the clear water sprayer and then, the vehicle is dried by said dryer.  In addition, in an apparatus for carrying out the above method, first and second aged-wax/fur removing material spreaders are arranged in front and rear of the rotary brush arrangement to sandwich the latter therebetween.  Further, the neutralizer-containing rinse sprayer and the dryer are disposed at front portions of the gate-type frame, respectively, and the clear water sprayer is disposed at a rear portion of the gate-type frame.
Patent CA-1326826-C (CA)
Title: Soap based gel sticks
Inventor: MORTILLO SUSAN M
IPC: A61K8/39
Filed: 1988-03-02
Granted: 1994-02-08
Abstract: SOAP BASED GEL STICK ABSTRACT OF THE DISCLOSURE   A clear, translucent gel cosmetic stick product having  good  stability  and application  aesthetics  and using long chain fatty acid soaps as the basic gellation component  and  dipropylene  glycol  as  a  solvent.   The sticks do  not  dry out,  shrink  or become cloudy,  or exhibit syneresis over a period of time.
Patent CA-1325516-C (CA)
Inventor: JANCEL ROLAND
IPC: A01G9/02
Filed: 1988-05-06
Granted: 1993-12-28
Abstract: The device is modular and is composed of culture containers which are carried or suspended, characterised in that each container (10) has a wall formed of at least three consecutive frustums, one base frustum (11) which is a water tank, one intermediate frustum (12) and one border frustum (14), in such a manner that the culture area (11c) is at least equal to three quarters of the surface area of the container in question. The invention is mainly used in the ornamentation and management of urban open spaces. <IMAGE>
Patent CA-1287921-C (CA)
Title: Analog-to-digital converter with adaptable quantizing  levels
Inventor: DEBUS WALTER JR
IPC: H03M1/18
Filed: 1988-05-24
Granted: 1991-08-20
Abstract: ANALOG-TO-DIGITAL CONVERTER WITH ADAPTABLE QUANTIZING LEVELS            Abstract An analog-to-digital converter having adaptable quantizing levels which compensate for unintended variations in the analog input signal amplitude. Variations in the amplitude range over which the quantizing levels extend is determined from an examination of preselected bits of the analog-to-digital converter output.
Patent CA-1307062-C (CA)
Inventor: PARKS HAROLD G
IPC: H01L29/78
Filed: 1988-06-02
Granted: 1992-09-01
Abstract: PROCESS AND STRUCTURE FOR THIN FILM TRANSISTOR    MATRIX ADDRESSED LIQUID CRYSTAL DISPLAYS               Abstract of the Disclosure A thin film FET switching element, particu-larly useful in liquid crystal displays, employs a set of special materials to ensure compatibility with the indium tin oxide of a pixel electrode layer used as transparent conductive material in liquid crystal display devices.  These materials include the use of titanium as a gate electrode material and the use of aluminum as a material to enhance electrical contact between source and drain pads and an underlying layer of amorphous silicon.  The apparatus and process of the present invention provide enhanced fabrication yield and device reliability.
Patent CA-1314918-C (CA)
Inventor: COLLEONI GUIDO
IPC: H01H33/65
Filed: 1988-06-15
Granted: 1993-03-23
Abstract: ABSTRACT            ROTARY SWITCH WITH CURVED ARC ROOT MIGRATION TRACK            A rotary switch with a sealed enclosure in which a rotating knife-blade is housed cooperating with two stationary contacts supported by  the internal  periphery of  the enclosure.  A permanent magnet is incorporated in the stationary contacts to magnetically blow the arc roots on a curved migration track towards hidden locations which are not facing the knife-blade.            The invention is applicable to a gas-insulated medium voltage switch.            Refer to figure 3.
Patent CA-1312336-C (CA)
Inventor: MAIGNAN JEAN
IPC: C07C317/14
Filed: 1988-06-30
Granted: 1993-01-05
Abstract: Polycyclic aromatic compounds of formula: 
<IMAGE>
 in which:
 R denotes -SO3H, -SO2NHR3, 
<IMAGE>
 or -SR3,
 R3 denoting lower alkyl, monohydroxyalkyl, polyhydroxyalkyl, aminoalkyl, carboxyalkyl, aminocarboxyalkyl or alkoxyalkyl,
 R' denotes H, lower alkyl, lower alkoxy, hydroxyl, C1-C4 acyloxy or amino,
 R" denotes H, lower alkyl or lower alkoxy, or
 R' and R", taken together, form an oxo (=O), methano (=CH2) or hydroxyimino (=N-OH) radical,
 R1 denotes H or lower alkyl,
 n is 0 or 1,
 when n = 1, R2 denotes H or lower alkyl, or R1 and R2, taken together form a vinylene radical, and
 Ar denotes an aromatic radical according to one of the following formulae: 
<IMAGE>
 in which:
 R4, R5, R6, R7, R8, R9, R10 and R11 denote H or lower alkyl, at least one of the radicals R4 and/or R5 being other than H, and at least two of the radicals R8 to R11 being other than H,
 A denotes a methylene or dimethylene radical substituted or otherwise by lower alkyl; when A denotes a dimethylene radical, R8 and R10 may form together a methylene or dimethylene radical,
 and the salts of the said compounds of formula (I) as well as their geometric and optical isomers. 
<??>Use in human and veterinary medicine and in cosmetics.
Patent CA-1323674-C (CA)
Inventor: DAY STEPHEN
IPC: H01B7/02
Filed: 1988-07-08
Granted: 1993-10-26
Abstract: ABSTRACT    An electrical wire comprises an elongate electri-cal conductor and electrical insulation comprising:            (a)  a  layer  of  a  crosslinked blend of  an aromatic polymer   and  a  polymer   containing  aliphatic moieties; and (b)  a tracking control layer located on top of, and/or beneath layer (a).      The  aromatic/aliphatic  polymer  layer  may,  for example, comprise a polyaryletherimide or polysulphone blended with an aliphatic or aliphatic/aromatic poly-amide e.g. nylon 12.  The tracking control layer may be inorganic e.g. silica, or organic e.g. a fluoropolymer. The wire insulation combines good electrical and mecha-nical properties with high resistance to wet or dry tracking.
Patent CA-1317885-C (CA)
Inventor: MORITA IZURU
IPC: F01N3/022
Filed: 1988-07-12
Granted: 1993-05-18
Abstract: APPARATUS FOR TREATING PARTICULATE EMISSION              FROM DIESEL ENGINE     ABSTRACT OF THE DISCLOSURE:      An apparatus which is disposed in an exhaust system of a diesel engine for treating particulate emissions contained in exhaust gas is disclosed.  The apparatus comprises a splittable casing body including an inlet-side casing portion and an outlet-side casing portion, an inlet pipe secured to the inlet-side casing portion, an outlet pipe secured to the outlet-side casing portion, a partition plate detachably retained between the inlet- and outlet-side casing portions such as to divide the inside of the casing body into two compartments, and at least one filter assembly detachably mounted in an opening provided in the partition plate.  The filter assembly is defined by a honeycomb-type ceramic filter which is accommodated in a metallic casing and surrounded by a cushioning material, and which has a catalyst carried on its internal passage wall.  The catalyst enables a lowering in the combustion temperature of the particulate emissions.  The ceramic filter is detachable from the partition plate together with the metallic casing in one unit.  Accordingly, it is possible to replace the filter with ease and to vary appropriately the number of filters in accordance with the displacement volume of the engine concerned.
Patent CA-1282968-C (CA)
Title: Fuel nozzle assembly for a gas turbine engine
Inventor: SCALZO AUGUSTINE J
IPC: F02C7/232
Filed: 1988-09-30
Granted: 1991-04-16
Abstract: ABSTRACT OF THE INVENTION         A fuel nozzle assembly having a cylindrical nozzle tip at one end of a fuel delivery tube and a supporting flange at the other end.  An air delivery tube, also secured to said support flange, encloses the fuel delivery tube to define an annular air chamber therebetween.  A cylindrical face of the nozzle tip is received in an similarly sized and shaped opening in a swirl cap attached to the end of the fuel delivery tube to slideably engage the air delivery tube and the fuel delivery tube and to define a substantially constant radial spaced relationship between the cylindrical nozzle tip and the air delivery tube during variable axial expansion of the fuel delivery tube and air delivery tube.  The air delivery tube is secured to the fuel delivery tube by mounting a radially expansive portion of the air delivery tube to the support flange.
Patent CA-1307527-C (CA)
Title: Heterocyclically substituted n-sultamsulfonamides, process for their preparation and their use as herbicides and plant growth regulators
Inventor: WILLMS LOTHAR
IPC: A01N47/36
Filed: 1988-10-28
Granted: 1992-09-15
Abstract: Abstract of the disclosure Heterocyclically substituted N-sultamsulfonamides, processes for their preparation and their use as herbicides and plant growth regulators Compounds of the formula I or their salts             (I) wherein R1 and R2 denote H, halogen, alkyl, alkenyl, alkynyl or alkoxy, which can be substituted, or denote -(CH2)n-COOR11; R3 denotes H, alkyl, alkenyl or alkynyl; R4 denotes a heterocyclic radical of the formulae                 or         where E is CH or N; X is 0 or 5 and a, b, c, d, e in each case denote 0, 1 or 2, with the proviso that c + d + e > 2, possess excellent herbicidal and plant growth-regulating properties.
Patent CA-1289850-C (CA)
Title: Dual hydrostatic drive transmission
Inventor: DORGAN ROBERT J
IPC: F16H3/74
Filed: 1988-12-01
Granted: 1991-10-01
Abstract: DUAL HYDROSTATIC DRIVE TRANSMISSION             ABSTRACT OF THE DISCLOSURE           A hydrostatic transmission includes a mechanically driven hydraulic pump connected in hydraulic circuit with first and second hydraulic motors.  The hydrostatic outputs of the first and second motors are respectively applied to the ring and sun gears of a planetary gear set whose carrier constitutes the transmission hydrostatic output.  Acceleration under low speed, high torque conditions is achieved by varying the displacements of the pump and second motor, while the first motor is removed from the hydraulic circuit and the ring gear is braked.  At an appropriate shift point, the first motor is inserted into the hydraulic circuit and the ring gear is released, such that further acceleration is achieved by varying the displacements of the pump and both motors in coordination.
Patent CA-1318767-C (CA)
Title: Continuous casting mold arrangement
Inventor: HARGASSNER REINHARD
IPC: B22D11/055
Filed: 1988-12-05
Granted: 1993-06-08
Abstract: ABSTRACT OF THE DISCLOSURE:        With a continuous casting mold,  the mold side walls each are formed by a supporting wall and an internal  plate fastened  thereto and getting  into contact with the  metal melt.  On  the side  of  the  internal  plate  facing  the supporting  wall  parallelly arranged coolant channels  are provided,  which  are  designed as slits open  towards the supporting wall and whose width is smaller and whose  depth is  larger,  than the width of the ribs located between the slits.   In   order  to  render  the  cooling   performance particularly  effective,  the width of the cooling ribs  is smaller than,  or equal to, 13 mm and the flow speed of the coolant is adjusted such that the heat transmission coeffi-cient  alpha between the internal plate and the coolant  is between  20  and 70 kW/m2K,  preferably between 25  and  50 kW/m2K,  such  that the heat flow density for the  internal plate  is  larger than the heat flow density for  a  smooth internal plate having no ribs.
Patent CA-1325492-C (CA)
Inventor: SUZUKI FUMIO
IPC: C08J3/16
Filed: 1988-12-30
Granted: 1993-12-21
Abstract: ABSTRACT     The invention discloses a process for the production of a particulate polymer which contains few fine particles and has a narrow particle size distribu-tion and a controlled bulk specific gravity.  Characte-ristic features of the process of this invention reside in that a polymer latex obtained by emulsion polymerization is successively processed through the following steps (I) and (II):          Step (I)  The polymer latex is coagulated into a slurry in which particles thus coagulated are dispersed in water.          Step (II) The slurry obtained in Step (I), an organic liquid almost insoluble in water and incapable of dissolving the polymer and water are mixed for granulation under the conditions that (a) The proportion of water in the whole mixture is 50-85 wt.%, (b) The amount of the organic liquid is 15-150 parts by weight per 100 parts by weight of the polymer in the polymer latex, and (c) The temperature T (°C) of the whole mixture is maintained for 0.5 minute to 1 hour on average within the range of the following equation:               A-40 ? T ? A     wherein A means the azeotropic temperature (°C) of the mixture.        In the above process, control of the interfacial tension between the organic liquid and the dispersion medium of the slurry within a specific range has made it possible to control the particle size of the resulting particulate polymer to a desired level.